1.   Although halogen bulbs use less energy than standard incandescent bulbs, they burn hotter.

2.   A fluorescent tube differs from an incandescent bulb in structure and in the way it produces light.

3.   Coconut shells were emptied, fitted with incandescent bulbs and turned into light fixtures.

4.   Flourescent lighting replaces incandescent bulbs.

5.   Fluorescent tubes are more economical to use than incandescent bulbs, but their cold blue light can make them undesirable for many applications.

6.   He also said that the research into both blue diode lasers and blue light-emitting diodes might also lead to white light sources that could replace incandescent bulbs.

7.   However, the equally popular recessed lighting generally uses high-powered incandescent bulbs.

8.   Its soft, unearthly glow highlights the specific character of fluorescent light, quite different from the acid brilliance of neon or the insistent sharpness of incandescent bulbs.

9.   Karen Farwell, a spokeswoman for GE Lighting, acknowledged that the Reveal bulb produces less light per watt than standard incandescent bulbs.

10.   Meeting the inventor of the laser is like meeting the inventor of the incandescent bulb or the discoverer of the laws of gravity.